Mounting base



FIG. 1 is a front, left, and top perspective view of a mounting base showing our new design;

FIG. 2 is a rear, left, and bottom perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof;

FIG. 7 is a bottom plan view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a sectional view thereof.

The broken lines in the figures are included for the purpose of illustrating portions of the article which form no part of the claimed design. 

CLAIM The ornamental design for a mounting base, as shown and described. 